What causes europe's mild climate?
a) proximity to the mediterranean
b) gulf stream winds
c) lack of precipitation
d) the alps mountain barrier

b) Gulf Stream winds

Explanation:

The Gulf Stream wind is a powerful ocean current that joins the Atlantic Ocean with warm water from the Gulf of Mexico. This reaches all the way up the United States to Canada's eastern coast. A large system of circular currents and strong winds called an oceanic gyre, causes the Gulf Stream. Earth has five oceanic gyres. The Gulf Stream is part of the Subtropical Gyre in the North Atlantic.